25 Algorithms library [algorithms]

25.5 Algorithm result types [algorithms.results]

Each of the class templates specified in this subclause has the template parameters, data members, and special members specified below, and has no base classes or members other than those specified.
namespace std::ranges { template<class I, class F> struct in_fun_result { [[no_unique_address]] I in; [[no_unique_address]] F fun; template<class I2, class F2> requires convertible_­to<const I&, I2> && convertible_­to<const F&, F2> constexpr operator in_fun_result<I2, F2>() const & { return {in, fun}; } template<class I2, class F2> requires convertible_­to<I, I2> && convertible_­to<F, F2> constexpr operator in_fun_result<I2, F2>() && { return {std::move(in), std::move(fun)}; } }; template<class I1, class I2> struct in_in_result { [[no_unique_address]] I1 in1; [[no_unique_address]] I2 in2; template<class II1, class II2> requires convertible_­to<const I1&, II1> && convertible_­to<const I2&, II2> constexpr operator in_in_result<II1, II2>() const & { return {in1, in2}; } template<class II1, class II2> requires convertible_­to<I1, II1> && convertible_­to<I2, II2> constexpr operator in_in_result<II1, II2>() && { return {std::move(in1), std::move(in2)}; } }; template<class I, class O> struct in_out_result { [[no_unique_address]] I in; [[no_unique_address]] O out; template<class I2, class O2> requires convertible_­to<const I&, I2> && convertible_­to<const O&, O2> constexpr operator in_out_result<I2, O2>() const & { return {in, out}; } template<class I2, class O2> requires convertible_­to<I, I2> && convertible_­to<O, O2> constexpr operator in_out_result<I2, O2>() && { return {std::move(in), std::move(out)}; } }; template<class I1, class I2, class O> struct in_in_out_result { [[no_unique_address]] I1 in1; [[no_unique_address]] I2 in2; [[no_unique_address]] O out; template<class II1, class II2, class OO> requires convertible_­to<const I1&, II1> && convertible_­to<const I2&, II2> && convertible_­to<const O&, OO> constexpr operator in_in_out_result<II1, II2, OO>() const & { return {in1, in2, out}; } template<class II1, class II2, class OO> requires convertible_­to<I1, II1> && convertible_­to<I2, II2> && convertible_­to<O, OO> constexpr operator in_in_out_result<II1, II2, OO>() && { return {std::move(in1), std::move(in2), std::move(out)}; } }; template<class I, class O1, class O2> struct in_out_out_result { [[no_unique_address]] I in; [[no_unique_address]] O1 out1; [[no_unique_address]] O2 out2; template<class II, class OO1, class OO2> requires convertible_­to<const I&, II> && convertible_­to<const O1&, OO1> && convertible_­to<const O2&, OO2> constexpr operator in_out_out_result<II, OO1, OO2>() const & { return {in, out1, out2}; } template<class II, class OO1, class OO2> requires convertible_­to<I, II> && convertible_­to<O1, OO1> && convertible_­to<O2, OO2> constexpr operator in_out_out_result<II, OO1, OO2>() && { return {std::move(in), std::move(out1), std::move(out2)}; } }; template<class T> struct min_max_result { [[no_unique_address]] T min; [[no_unique_address]] T max; template<class T2> requires convertible_­to<const T&, T2> constexpr operator min_max_result<T2>() const & { return {min, max}; } template<class T2> requires convertible_­to<T, T2> constexpr operator min_max_result<T2>() && { return {std::move(min), std::move(max)}; } }; template<class I> struct in_found_result { [[no_unique_address]] I in; bool found; template<class I2> requires convertible_­to<const I&, I2> constexpr operator in_found_result<I2>() const & { return {in, found}; } template<class I2> requires convertible_­to<I, I2> constexpr operator in_found_result<I2>() && { return {std::move(in), found}; } }; }